As a model example of the effect of E´B shear flow on the cross
phase between electrostatic potential and pressure fluctuations, a nonlinear
theory of resistive pressure gradient driven turbulence (RPGDT) in a shear
flow is presented. This work builds on numerical studies of RPGDT, which
have shown that both the flow shear and curvature can affect the cross
phase as well ans the fluctuation levels. In this work, we show that the
effect of shear flow on transport can be expressed through the temporal
response of pressure to potential. It is shown heuristically that even
in the case where the fluctuation levels are not modified, the flow shear
still acts to reduce the phase angle between potential and pressure fluctuations,
thereby suppressing transport. The scaling of the cross phase with flow
shear and flow curvature is presented.